Animals
Spider silk-making organs evolved due to a 400-million-year-old genetic oops
An ancient ancestor of spiders and relatives doubled its genome about 400 million years ago, setting the stage for the evolution of spinnerets.
Animals
More Stories in Animals
- Animals
Animals experience joy. Scientists want to measure it
Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure positive feelings — and it’s a challenge.
- Life
There’s life beneath the snow, but it’s at risk of melting away
An array of animals and plants survive winter in the subnivium, nature’s igloo. But climate change is threatening this hidden seasonal ecosystem.
- Animals
This tool-using cow defies expectations for bovine braininess
Veronika the cow uses a brush as a tool to scratch herself, revealing rare problem-solving skills and expanding what we know of tool use in animals.
- Animals
This fish may play a hole in its head like a drum
The rockhead poacher is a little fish with a big pit in its head. The divot may be like a drum, making sound that rises above a chaotic, nearshore din.
- Animals
Animal personalities can play a big role in saving species
From bold foxes to gregarious birds, animals’ personalities are increasingly being seen as crucial to conservation efforts.
- Animals
How cheetah mummies could help bring the species back to Arabia
Arabian cheetah mummies' DNA reveals that the long-lost population could be closely replaced by a cheetah population in northwestern Africa.
- Physics
Queen bumblebees are poor foragers thanks to sparse tongue hair
The density of fine hairs on bumblebees’ tongues determines how much nectar they can collect — and workers put queen bees to shame.
- Animals
Among chimpanzees, thrill-seeking peaks in toddlerhood
In humans, teens do the most dangerous things. In chimpanzees, that honor goes to toddlers. The difference may lie in caregiver supervision.
- Animals
An all-female wasp is rapidly spreading across North America’s elms
The elm zigzag sawfly has spread to 15 states in five years. Now it's attacking the tree that cities planted to replace Dutch elm disease victims.
